A customer of mine asked the company about a project related to 'Internet of Things'. I just built this sensor, able to measure the distance (based on ultrasound transmitter).
All components come from the 'Inventor's kit 4.0' produced by Sparkfun. A newest version is now available and comes with the Redboard Qwiic, that allows you to connect a couple of breakboards in a row, with easy cabling. A must have if you want to learn eletronics from scratch.
https://www.sparkfun.com/products/15267
